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Heart|Lab Grown|IGI

1.22ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG823694503

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG823694503

Diamond specifications and retailer prices

From £333 GBP
As of November 4, 2026
Save £1,106 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,438 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.22ct lab-grown heart diamond

This 1.22ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823694503 or 823694503. Listed at 13 retailers as of November 4, 2026, with prices from £333 to £1,438, a £1,106 spread on the same certified stone. MOH London lists it at £1,438. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823694503
Dimensions6.79 × 7.47 × 4.21 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.79 mm7.47 mm1.22 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823694503
Side View
Table 62.0%Crown 35.3°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 56.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,438 GBP|Low: £333 GBP|High: £1,477 GBP|Avg: £834 GBP|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9£333 GBP
Retailer 7£478 GBP
Retailer 11£498 GBP
Retailer 12£564 GBP
Retailer 5£600 GBP
Retailer 3£617 GBP
Retailer 4£639 GBP
Retailer 6£901 GBP
Retailer 10£1,036 GBP
Retailer 8£1,213 GBP
Retailer 2£1,354 GBP
MOH London£1,438 GBP

23 data points across 12 retailers

13 retailers£333 GBP to £1,438 GBP

A
Cheapest Retailer
-
£333 GBP
Final sale: no returns
A
Retailer 2
-
£478 GBP
View
A
Retailer 3
-
£498 GBP
View
B+
Retailer 4
-
£564 GBP
View
B+
Retailer 5
-
£600 GBP
View
B+
Retailer 6
-
£617 GBP
View
B+
Retailer 7
-
£639 GBP
View
B+
Retailer 8
-
£901 GBP
View
B
Retailer 9
-
£1,036 GBP
View
B
Retailer 10
-
£1,213 GBP
View
Retailer 11
-
£1,324 GBP
View
Price last confirmed 28 days ago
B
Retailer 12
-
£1,354 GBP
View
Most Expensive
B
MOH London
LG823694503 · Nov 5
£1,438 GBP
View
12 more retailers have this diamond
Prices start from £333 GBPSave up to £1,106 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.22ct Heart
£333 GBP